Custom sheet metal fabrication and installation for roofing applications across Greater Montreal. Flashing, drip edges, copings, and architectural details built to last.
Sheet metal work is the backbone of every high-performance roofing system. The flashings, drip edges, copings, counter-flashings, and custom trim pieces that are fabricated from sheet metal are what make the transitions between different building elements watertight. Where the roof meets a wall, where a chimney penetrates the roof plane, where the eaves transition to fascia, and where a parapet cap protects the wall below -- all of these critical junctions rely on properly fabricated and installed sheet metal details.
In Quebec, sheet metal roofing details face constant stress from thermal cycling. Metal expands when heated and contracts when cooled, and in a climate where rooftop temperatures can shift by 80 degrees Celsius or more between winter lows and summer highs, that movement is substantial. Sheet metal details must be designed to accommodate this movement without breaking their waterproof seal. Our fabrication uses proper hem folds, expansion joints, and overlap dimensions calculated for Quebec's temperature range.
We fabricate custom sheet metal pieces in our shop using commercial-grade equipment including brakes, shears, and forming tools. Materials include galvanized steel, aluminum, copper, and pre-painted steel in a range of colors to match existing building finishes. Every piece is measured and fabricated to fit the specific conditions of the installation rather than forced to fit from generic stock pieces. This custom approach produces tighter joints, better water shedding, and a more finished appearance.
Our sheet metal services cover the full range of roofing applications. We fabricate and install chimney flashings (step and counter-flashing), wall flashings where roofs meet vertical surfaces, drip edges along eaves and rakes, valley linings for sloped roofs, parapet copings for flat roof perimeters, scupper boxes for flat roof drainage, and custom decorative trim. We also replace deteriorated sheet metal details on existing roofs, which is one of the most common and effective repairs for stopping leaks at transition points.
Why this service
Custom fabrication for exact fit and performance
All metals: galvanized steel, aluminum, copper
Chimney, wall, and penetration flashings
Drip edges, copings, and valley linings
Designed for Quebec thermal expansion range
Critical for waterproofing at all roof transitions
FAQ for this service
The majority of roof leaks occur at transitions: where the roof meets a wall, chimney, vent, or edge. Sheet metal flashings and trim protect these vulnerable areas. Even the best roofing material will leak if the sheet metal details are poorly fabricated or installed. Quality metal work is essential for a watertight roof.
We primarily use galvanized steel, pre-painted steel, and aluminum for standard applications. Copper is available for premium and heritage projects. The choice depends on compatibility with the roofing material, aesthetic requirements, budget, and exposure conditions.
Yes, flashing replacement is one of our most common services. Deteriorated chimney flashing, wall flashing, and drip edges can often be replaced independently. The surrounding roofing material needs to be carefully lifted and resealed, but a full roof replacement is not necessary.
Galvanized steel and aluminum flashings typically last 20 to 30 years depending on exposure and coating quality. Copper can last the life of the building. Pre-painted steel holds up well as long as the factory coating remains intact. Regular inspection catches early deterioration before leaks develop.
Yes, we fabricate custom metal details including decorative cornices, fascia covers, soffits, cupola flashings, and other architectural elements. Our shop equipment handles complex bends and profiles. We work from drawings, measurements, or samples to produce pieces that match the building's design.